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Name	Size	Permission
.pkexec	[ DIR ]	drwxr-xr-x
GCONV_PATH=.	[ DIR ]	drwxr-xr-x
db_analytics_php	[ DIR ]	drwxrwxrwx
.mad-root	0 B	-rw-r--r--
pwnkit	10.99 KB	-rwxr-xr-x
test_analysis.php	1.48 KB	-rwxrwxrwx
test_indicator_discrete.php	2.58 KB	-rwxrwxrwx
test_indicator_fullname.php	2.58 KB	-rwxrwxrwx
test_indicator_max.php	1.93 KB	-rwxrwxrwx
test_indicator_min.php	1.93 KB	-rwxrwxrwx
test_indicator_multiclass.php	2.51 KB	-rwxrwxrwx
test_indicator_null.php	1.95 KB	-rwxrwxrwx
test_indicator_random.php	1.94 KB	-rwxrwxrwx
test_site_users_analyser.php	3.94 KB	-rwxrwxrwx
test_static_target_shortname.p...	2.47 KB	-rwxrwxrwx
test_target_course_level_short...	1.39 KB	-rwxrwxrwx
test_target_course_users.php	1.84 KB	-rwxrwxrwx
test_target_shortname.php	4.42 KB	-rwxrwxrwx
test_target_shortname_multicla...	5.85 KB	-rwxrwxrwx
test_target_site_users.php	4.4 KB	-rwxrwxrwx
test_timesplitting_seconds.php	1.55 KB	-rwxrwxrwx
test_timesplitting_upcoming_se...	1.56 KB	-rwxrwxrwx

Code Editor : test_indicator_null.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Test indicator. Always null.
 *
 * @package   core_analytics
 * @copyright 2017 David Monllaó {@link http://www.davidmonllao.com}
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

/**
     * Returns a lang_string object representing the name for the indicator.
     *
     * Used as column identificator.
     *
     * If there is a corresponding '_help' string this will be shown as well.
     *
     * @return \lang_string
     */
    public static function get_name() : \lang_string {
        // Using a string that exists and contains a corresponding '_help' string.
        return new \lang_string('allowstealthmodules');
    }

/**
     * calculate_sample
     *
     * @param int $sampleid
     * @param string $samplesorigin
     * @param int $starttime
     * @param int $endtime
     * @return float
     */
    protected function calculate_sample($sampleid, $samplesorigin, $starttime, $endtime) {
        return null;
    }
}

${this.title}

Code Editor : test_indicator_null.php